is a set of observations over successive periods of time(e. g., monthly stock market returns for the past ten years).

Time series

Explanation:

Time series refers to the observation and recording of a variable over successive periods of time to allow for analysis. It is called a trend when a consistent pattern emerges from the data being observed.

Examples of time series would be, monthly stock market returns for the past ten years, sales over the past 8 years and so on. As long as it describes data over successive periods, it is most likely a time series.

answer; only identify and interpret trends in the marketplace;

answer; ///decision making under risk;